212212210110121 has 8 divisors (see below), whose sum is σ = 228647004888960. Its totient is φ = 195793240847952.

The previous prime is 212212210110113. The next prime is 212212210110127. The reversal of 212212210110121 is 121011012212212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212212210110121 - 2³ = 212212210110113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212212210110127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3956351311 + ... + 3956404948.

It is an arithmetic number, because the mean of its divisors is an integer number (28580875611120).

Almost surely, 2^{212212210110121} is an apocalyptic number.

It is an amenable number.

212212210110121 is a deficient number, since it is larger than the sum of its proper divisors (16434794778839).

212212210110121 is a wasteful number, since it uses less digits than its factorization.

212212210110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7912758335.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212212210110121 its reverse (121011012212212), we get a palindrome (333223222322333).

The spelling of 212212210110121 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred ten million, one hundred ten thousand, one hundred twenty-one".